Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: question: Nomeie o número de anos para 18.5
 ###Tabelas: CREATE TABLE electronic-paper_displays (electronic-paper_displays_id AUTO_INCREMENT PRIMARY KEY, Maker VARCHAR, Model VARCHAR, Intro year VARCHAR, Screen size (inch) VARCHAR, Self-lit VARCHAR, Screen type VARCHAR, Weight VARCHAR, Screen pixels VARCHAR, Touch screen VARCHAR, micro SDHC VARCHAR) CREATE TABLE legislation_sponsored_by_john_mccain (legislation_sponsored_by_john_mccain_id AUTO_INCREMENT PRIMARY KEY, Years covered VARCHAR, All bills sponsored INT, All amendments sponsored INT, All bills cosponsored INT, All amendments cosponsored INT, Bills originally cosponsored INT, Amendments originally cosponsored INT) CREATE TABLE inhabited_territories (inhabited_territories_id AUTO_INCREMENT PRIMARY KEY, Territory VARCHAR, Abbr. VARCHAR, Capital VARCHAR, Acquired INT, Territorial status VARCHAR, Population ( 2010 ) INT, House seat INT) CREATE TABLE nascar_sprint_cup_series (nascar_sprint_cup_series_id AUTO_INCREMENT PRIMARY KEY, Year INT, Starts INT, Wins INT, Top 5 INT, Top 10 INT, Poles INT, Avg. Start VARCHAR, Avg. Finish VARCHAR, Winnings VARCHAR, Position VARCHAR, Team(s) VARCHAR) CREATE TABLE available_keypads (available_keypads_id AUTO_INCREMENT PRIMARY KEY, Supplier VARCHAR, Basic shape VARCHAR, Keys (x modes) VARCHAR, Wrist pad VARCHAR, Thumb stick VARCHAR, Backlit VARCHAR)  
SELECT COUNT Year FROM nascar_sprint_cup_series WHERE Avg. Finish = 18.5